Cannon Creek Airpark Airport
Aircraft Accident/Incident Report

Lake City, Florida 32025
Thursday, September 2, 2010 18:00 EDT

NTSB Narrative Summary Released at Completion of Accident

The pilot completed a preflight inspection of the airplane and a run-up check of the engine, noting no anomalies. During the initial climb, the pilot noted that the engine coolant temperature had risen above its normal range, and he responded by reducing engine power. He also turned the airplane left toward the overrun area for a perpendicular runway. The engine coolant temperature continued to rise as the pilot pitched the airplane for the best glide speed. As the pilot continued to maneuver the airplane, the sink rate was increasing, so he applied full power, with no accompanying response from the engine. During the attempted landing, the pilot gradually lost control of the airplane as it slowed, and subsequently struck a pool enclosure attached to a home. A postaccident examination of the engine found contamination within the carburetors; the pistons, connecting rods, and crankcase exhibited a black/brown glaze; and the lower piston rings exhibited extreme carbon build-up; however, no definitive cause for the rise in engine coolant temperature or the reported partial loss of engine power could be determined. The reported temperature and dew point at an airport located 34 nautical miles from the accident site were conducive to the formation of "serious" carburetor icing at glide engine power settings; however, given that the engine was operating at a very high power output when the reported loss of power occurred, it was unlikely that carburetor icing contributed to the partial loss of engine power.

NTSB Probable Cause Narrative

A partial loss of engine power for undetermined reasons.

Event Information

Type of Event Accident
Event Date 9/2/2010
Event Day of the Week Thursday
Time of Event 1800
Event Time Zone Eastern Daylight Time
Event City Lake City
Event State FLORIDA
Event Country --
Zipcode of the event site 32025
Event Date Year 2010
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 300913N
Event Location Longitude 0823959W
Event Location Airport Cannon Creek Airpark
Event Location Nearest Airport ID 15FL
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 125
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1753 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 120
Weather Observation Facility ID GNV
Elevation of weather observation facility 152
Distance of event from weather observation facility (units?) 34
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 32
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.9
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 29705
NTSB Notification Source FAA Southern CROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Mar 14 2012 10:35AM
User who most recently changed record kenj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7108Z
NTSB Number ERA10LA463
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name QUICKSILVER
Aircraft Model MX-2
Aircraft Series Identifier --
Aircraft Serial Number PS1950
Certified Max Gross Weight 720
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Aug 5 2010 12:00AM
Airframe hours since last inspection 16
Airframe Hours 220
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ZAHNLE RALPH J JR
Aircraft Owner Street Address --
Aircraft Owner City LAKE CITY
Aircraft Owner State FL
Aircraft Owner Country USA
Aircraft Owner Zipcode 32025
Operator is an individual? Yes
Operator Name ZAHNLE RALPH J JR
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City LAKE CITY
Operator State FL
Operator Country USA
Operator Zip code 32025
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code 15FL
Departure City Lake City
Departure State FL
Departure Country USA
Departure Time 1800
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 15FL
Destination City Lake City
Destination State FL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 14 2012 10:35AM
User who most recently changed record kenj
Since inspection or accident --
Event Location Runway Number and Location 27
Runway Length 2292
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --